Microsoft’s agentic security system found four critical Windows RCE flaws

Microsoft responded to growing competition in AI security by announcing that its new agentic security system helped researchers discover 16 new vulnerabilities in the Windows networking and authentication stack, including four critical remote code execution (RCE) flaws. MDASH architecture diagram (Source: Microsoft) Two of the four flaws — CVE-2026-40361 and CVE-2026-40364 — were deemed by Microsoft to be more likely to be exploited. The multi-model agentic scanning harness, codenamed MDASH, was